Baby tree frogs are carnivorous and eat smaller insects, such as crickets and wax worms. Tree frogs should be fed insects that are in proportion to their size. Food needs to be small enough for the frog to easily eat.
Pet Supplies Plus states that pet tree frogs require calcium and vitamin-dusted insects a few times a week. However, baby tree frogs need more supplements and typically require dusted insects more often. Pet Supplies Plus further recommends feeding crickets a healthy diet 24 hours before using them as food. Healthily fed crickets ensure that both adult and baby tree frogs receive enough vitamins and nutrients.